HingeJoint.limits
var limits: JointLimits;
JointLimits limits;
limits as JointLimits
Description

Limit of angular rotation on the hinge joint.

The joint will be limited so that the angle is always between /limits.min/ and /limits.max/. The joint angle is in degrees relative to the rest angle. The rest angle between the bodies is always zero at the beginning of the simulation.
	// Make hinge limit for a door.
	var limits = hingeJoint.limits;
	limits.min = 0;
	limits.minBounce = 0;
	limits.max = 90;
	limits.maxBounce = 0;
	hingeJoint.limits = limits;
using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    public JointLimits limits = hingeJoint.limits;
    void Example() {
        limits.min = 0;
        limits.minBounce = 0;
        limits.max = 90;
        limits.maxBounce = 0;
        hingeJoint.limits = limits;
    }
}
import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	public limits as JointLimits = hingeJoint.limits

	def Example() as void:
		limits.min = 0
		limits.minBounce = 0
		limits.max = 90
		limits.maxBounce = 0
		hingeJoint.limits = limits