JPH0737578U - Hinge pin removal tool - Google Patents

Abstract

(57) [Summary] [Purpose] Remove the hinge pin without damaging the painted surface of the hinge. [Structure] The hinge pin removing tool T is for pulling out the hinge pin based on the principle of nail pulling, and includes a rod-shaped lever 1 and a substantially wedge-shaped head portion 3 welded to one end of the lever 1.
With. The head portion 3 includes an edge 6 that is inserted into a gap between the back surface of the hinge pin head and the front surface of the hinge, and a hinge pin contact surface 4 that is continuously provided above the edge 6 and contacts the back surface of the head of the hinge pin. A hinge contact surface 5 that contacts the surface of the hinge and a hinge pin fitting groove 7 into which the shaft portion of the hinge pin fits are provided. The hinge contact surface 5 has a smoothly finished convex curved surface plated, so that the hinge coated surface is not damaged.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hinge pin removing tool used when removing a hinge pin from a hinge.

[0002]

[Prior art]

 In an automobile assembly line that assembles various parts into the body of an automobile that has finished the painting process, parts may be assembled with the door temporarily removed from the body. In such a door-separated automobile assembly line, tools such as pliers have been conventionally used to remove the hinge pin that pivotally supports the door to the vehicle body.

[0003]

[Problems to be solved by the device]

 However, when attempting to remove the hinge pin with pliers, the corners of the pliers come into contact with the paint surface of the hinge, causing the paint to peel off.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a hinge pin removal tool capable of removing a hinge pin without damaging the paint surface of the hinge.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, a tool for removing a hinge pin according to the present invention has a hinge pin contact surface capable of contacting the back surface of the head of the hinge pin and a hinge contact surface capable of contacting the surface of the hinge via an edge. A substantially wedge-shaped head portion continuously provided on one end of the lever, a hinge pin fitting groove into which the shaft portion of the hinge pin can fit from the edge side is formed in the head portion, and the hinge contact surface is formed into an edge. It is characterized in that it is composed of a smooth convex curved surface that is continuous with and is plated.

[0006]

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

1 to 4 show an embodiment of the present invention. FIG. 1 is an overall side view and an overall plan view of a tool for removing a hinge pin, and FIG. 2 is a side view of an automobile door hinge. 3 is a view taken along the line 3-3 in FIG. 2, and FIG. 4 is a view taken in the direction of four arrows in FIG.

As shown in FIG. 1, a hinge pin removal tool T includes a lever 1 formed by bending a rod having a circular cross section into a substantially “V” shape, and a head 2 welded to one end of the lever 1. And part 3. The head portion 3 has a flat upper surface as a hinge pin contact surface 4 and a lower surface as a hinge contact surface 5 having a smooth convex curved surface. The hinge pin contact surface 4 and the hinge contact surface 5 are edged. It is formed in a substantially wedge shape by being connected continuously via 6. A U-shaped hinge pin fitting groove 7 is formed in the head portion 3 so as to penetrate from the hinge pin contact surface 4 to the hinge contact surface 5 and open to the edge 6.

The hinge contact surface 5 of the head portion 3 is smoothly and precisely processed so as not to damage the painted surface of the hinge. Further, the head portion 3 including the hinge contact surface 5 is hardened and plated. Is applied. A tapered portion 8 is formed at the other end of the lever 1, and the tapered portion 8 is subjected to quenching and plating.

FIG. 2 shows a hinge H that pivotally supports an automobile door on a vehicle body. The hinge H includes a door side hinge 11 attached to a door, a vehicle body side hinge 12 attached to a vehicle body, and a hinge pin 13 connecting the door side hinge 11 and the vehicle body side hinge 12.

The door-side hinge 11 is fixed to the door by two bolts 14 and 14 penetrating the pair of upper and lower bolt holes 11 ₁ and 11 _1, and the vehicle-body-side hinge 12 is a pair of upper and lower bolt holes 1 2 ₁ . It is fixed to the vehicle body by two bolts 15, 15 penetrating 12 ₁ . The hinge pin 13 is composed of a head portion 13 ₁ and a shaft portion 13 ₂ , and the shaft portion 13 ₂ is inserted into two pin holes of the door side hinge 11 and two pin holes of the vehicle body side hinge 12, and is formed in the lower part thereof. A clip (not shown) is attached to the clip hole 13 ₃ to prevent the clip from coming off.

Next, the operation of the embodiment of the present invention will be described.

When the vehicle body of the automobile, which has been painted from the painting process, is carried in, the hinge pin 13 is extracted using the hinge pin removal tool T with the door to be removed open.

As shown in FIGS. 3 and 4, first, the tip of the tapered portion 8 of the tool T for removing the hinge pin is brought into contact with the head of the lower bolt 14 for fixing the door-side hinge 11, and One side surface of the tapered portion 8 is brought into contact with the lower end of the hinge pin 13. From this state, when the hinge pin removal tool T is swung in the direction of the arrow a in FIG. 3, the hinge pin 13 is pushed up in the direction of the arrow b due to the leverage, and the back surface of the head 13 _{1 of the} hinge pin 13 is on the vehicle body side hinge 12. Slightly spaced from the surface of the.

Next, the edge 6 of the head portion 3 of the tool T for removing the hinge pin is inserted between the back surface of the head 13 ₁ of the hinge pin 13 and the front surface of the vehicle body side hinge 12, and the hinge pin is fitted into the hinge pin fitting groove 7. The shaft portion 13 ₂ of 13 is fitted. At this time, the hinge pin abutting face 4 of the head portion 3 is in contact with the head 13 ₁ rear surface of the hinge pin 13, and the hinge abutment surface 5 is in contact with the surface of the body-side hinge 12. When the hinge pin removal tool T is swung in this state in the direction of arrow c in FIG. 3, the hinge pin 13 is pulled out in the direction of arrow b in the same manner as when pulling out a nail by pulling out a nail. When the hinge pin 13 is sufficiently pulled out in this manner, it is possible to completely pull it out from the hinge H ₁ by putting a finger on the head portion 13 ₁ .

When the hinge pin 13 is pulled out using the head portion 3 of the tool T for removing the hinge pin, the hinge contact surface 5 that contacts the surface of the vehicle body side hinge 12 is finished into a smooth convex curved surface and plated. The painted surface of the vehicle body side hinge 12 is not scratched because it is provided.

Although the embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various design changes can be made.

[0018] For example, the taper portion 8 of the removal tool T of the hinge pin is not necessarily required, a method such as hitting the lower end of the shaft portion 13 ₂ of the hinge pin 13 of the hinge pin 13 the head 1 3 ₁ rear surface and the body-side hinge 12 of the A gap for inserting the head portion 3 may be formed between the surface and the surface. In this case, hitting the lower end of the shaft portion 13 ₂ of the hinge pin 13 does not damage the painted surface of the hinge H. Further, the hinge pin removing tool T of the present invention can be applied to various hinges other than automobile door hinges.

[0019]

[Effect of device]

 As described above, according to the present invention, a slight gap is formed between the back surface of the head of the hinge pin and the front surface of the hinge, and the edge of the substantially wedge-shaped head portion is inserted into the gap and the lever is pushed down. The hinge pin can be pulled out from the hinge. Moreover, since the hinge contact surface provided on the head portion is made of a smooth convex curved surface and is plated, it is possible to prevent the painted surface of the hinge from being damaged when the hinge pin is pulled out.

[Brief description of drawings]

FIG. 1 is an overall side view and an overall plan view of a hinge pin removal tool.

FIG. 2 is a side view of an automobile door hinge.

FIG. 3 is a view taken along the line 3-3 of FIG.

FIG. 4 is a four-direction arrow view of FIG.

[Explanation of symbols]

1 Lever 3 Head part 4 Hinge pin contact surface 5 Hinge contact surface 6 Edge 7 Hinge pin fitting groove 12 Vehicle body side hinge (hinge) 13 Hinge pin 13 ₁ Head part 13 ₂ Shaft part

Claims (1)

[Scope of utility model registration request] _1. A hinge pin abutting surface (4) capable of abutting against the back surface of a head (13 ₁ ) of a hinge pin (13) and a hinge (1).
A head portion (3) having a substantially wedge shape in which a hinge contact surface (5) capable of contacting the surface of 2) is connected via an edge (6) is provided at one end of the lever (1). The shaft (13 ₂ ) of the hinge pin (13) is formed in the portion (3) with a hinge pin fitting groove (7) into which the shaft (13 ₂ ) can be fitted from the edge (6) side, and the hinge contact surface (4) is formed into the edge (6). A tool for removing a hinge pin, characterized in that it is constituted by a smooth convex curved surface continuing to 6) and is plated.