JP5070443B2 - Lever handle lock - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a lever handle lock that can open and close a door more easily than a conventional lever handle type door knob, and has a feature that reduces a burden of muscular strength, not only for a healthy person but also for an elderly person, a child, and an upper limb handicapped person .

  The doorknob has shifted from a conventional handlebar type doorknob to a lever handle type doorknob, and the current penetration rate is 90% of ordinary houses.

  Conventional grip-type door knobs can be used when both hands are blocked, when the upper limb is damaged (eg, hemiplegia, grip strength, finger deficit), or when the elderly or children are weak. Opening and closing was difficult.

  Lever handle type door knobs can be opened and closed with relatively little force compared to the above-mentioned grip ball type door knobs by lever lever application, so this lever handle type door knob is now popular. However, even with a lever handle type door knob, it may be difficult to open and close the door while holding the door knob, depending on the shape and angle of the door knob or the state of use of the door knob.

JP 2003-82889 A

  The conventional lever handle type door knob is installed horizontally, but because of the unlocking structure by rotation, the door knob angle is tilted diagonally downward when opening and closing the door. It may be difficult for a user with weak grip strength or muscle strength, such as a grip strength disorder or a finger deficit disorder, to hold the doorknob in a tilted position. Even in healthy people, when opening and closing the door when both hands are closed, etc., the door knob tilts diagonally downward, so there is a problem such as force escaping and slipping, avoiding such a state Therefore, there is a need for a door knob shape and mechanism that can easily open and close the door. An object of the present invention is to provide a lever handle lock that can easily open and close a door not only for healthy persons but also for elderly persons, children, and upper limb disabled persons (such as hemiplegia, grip strength disorder, and finger defect disorder).

  As described above, the conventional lever handle type doorknob used in general has a problem that has not been solved yet, and therefore, eagerly worked to solve the problem.

  A lever handle lock according to the present invention comprises a mechanism for sliding a door knob of a lever handle lock installed horizontally to slide downward while maintaining a horizontal state, and a latch attached to the lever handle lock via the slide mechanism. A lever handle lock having a latch unlocking mechanism for reciprocating movement. In other words, a handle guide orthogonal to the axis of the lever handle is projected from one end of the lever handle of the lever handle lock, and the handle guide is fitted to the lever handle lock body, and the handle is centered. Is a lever handle lock in which the other end of the spring attached to the lever handle lock is fixed to the other side of the swing member pivotally supported by the lock body. Further, in the lever handle lock, a handle guide perpendicular to the axis of the lever handle is protruded on one side surface of the lever handle, and the handle guide can be moved up and down to the rack mounted on the lock body. A transmission gear fitted on one side of the rack and a connecting member that reciprocates a latch mounted on the lever handle lock on the other side of the transmission gear, and one end of the locking member is connected to the locking member. The lever handle lock is made by fixing the other end of the spring fixed to the main body. The lever handle type door knob unlocking structure of the conventional lever handle lock is changed from the unlocking structure by rotation to the lever handle type lock installed horizontally. By keeping the door knob horizontal and sliding it downward, the latch reciprocates left and right to create an unlocking structure that unlocks the door. As well, it was to allow the elderly and children, upper limb disabilities (hemiplegia and grip strength disorders, such as finger deficit disorder) the burden at the time of unlocking of can be reduced.

  In the present invention, the conventional unlocking structure by rotating the doorknob is made into an unlocking structure that slides horizontally, so that not only healthy persons but also elderly persons and children, upper limbs disabled persons (such as hemiplegia, grip strength disorder, finger defect disorder, etc.) ), It is a lever handle lock that can be unlocked with little burden and the door can be easily opened and closed.

  Embodiments of the present invention will be described below. Specifically, the lever handle lock and its structure according to this embodiment will be described.

  The lever handle lock according to the present invention has a mechanism for reciprocating the latch left and right and unlocking the door by sliding downward while keeping the lever handle type door knob installed horizontally horizontally. The lever handle lock is characterized in that the unlocking load can be reduced.

  This lever handle lock can be installed on a conventional door, and the mounting method and mounting position can also be installed without changing the conventional module, and can be adjusted according to the object. Moreover, the material of the doorknob can be composed of various materials such as metal, plastic, wood, ceramics and the like.

  Next, examples of the present invention will be shown. However, the present invention is not limited to the following examples as a matter of course. Of course, the present invention can be implemented with appropriate modifications as long as it fits the purpose of the preceding and following descriptions. These are all included in the technical scope of the present invention.

  1 is a plan view according to Embodiment 1 of the present invention, FIG. 2 is an elevation view thereof, FIGS. 3, 4, and 5 are operation explanatory views of a doorknob, and FIG. 3 is an explanatory view showing a state in which a latch is closed. FIG. 4 is an explanatory view showing a state where the door knob is moved for unlocking, and FIG. 5 is an explanatory view showing a state where the latch is unlocked. These figures are principle diagrams according to the present invention. In these drawings, 1 is a lever handle, 2 is a lock body case, 3 is a cover, 4 is a latch, 5 is a swinging member (transmission gear), 6 is a spring, 7 is a handle guide, and 8 is a latch guide (connecting member). ). The swing member 5 is pivotally supported by the lock body case 2, and the handle guide 7 and the latch guide 8 are inserted and inserted along a slot provided in the lock body case 2. As shown in FIGS. 3 to 5, when the lever handle 1 installed horizontally is sequentially moved so as to slide downward while maintaining the level, the handle guide 7 pushes the swinging member 5 downward, thereby When the swinging member 5 is rotated and rotated, the swinging member 5 moves the latch 4 inward while retracting the spring 6 and retracts it to unlock the door. By using the lever handle lock having the mechanism structure of the present invention, the lever 4 is moved horizontally downward from when the lever handle 1 is gripped to when the door is opened and closed, so that the latch 4 is moved back and forth. The door could be opened and closed by its own weight, reducing the strain on muscle strength.

  6 is a plan view according to the second embodiment of the present invention, FIG. 7 is an elevation view thereof, FIGS. 8, 9 and 10 are explanatory views of the operation of the door knob 1, and FIG. 8 is a state in which the latch 4 is closed. FIG. 9 is an explanatory view showing a state where the lever handle 1 is moved for unlocking, and FIG. 10 is an explanatory view showing a state where the latch 4 is unlocked. These figures are principle diagrams according to the present invention. In these drawings, 9 is a latch gear plate and 10 is a handle gear plate. The present embodiment is different from the first embodiment in that the transmission gear 5 has a rack and pinion fitting structure. While the lever handle 1 is horizontally installed, the handle guide 7 is operated along the slot provided in the lock body case 2 with the handlebar 7 being horizontally lowered, whereby the handle gear plate 10 connected to the lever handle 1 is moved downward. When moving, the transmission gear 5 meshed with the handle gear plate 10 interlocks with the latch gear plate 9 meshed with the gear, and the latch guide 8 moves along the slot provided in the lock body case 2 by interlocking. While moving the latch 4 inward, the door is unlocked. By using the lever handle lock having the mechanism structure of the present invention, the lever handle 1 moves horizontally downward from when the lever handle 1 is gripped to when the door is opened and closed, thereby causing the latch 4 to reciprocate. The door could be opened and closed by its own weight, reducing the strain on muscle strength.

Demonstration example 1

  In the present invention, an ergonomic evaluation method is used to produce a door model that can be adjusted in eight steps from -30 ° to 75 ° with a door knob angle of 15 ° for the lever handle lock. An electrogram was measured. The unlocking angle of the lever handle lock used is 30 °. FIG. 11 is a graph of a subjective survey result on the lever handle lock. The angle shown in FIG. 11 is the angle at the time of installation, and 0 ° is the same level as the conventional lever handle lock. As shown in the figure, when the door knob 1 is gripped, the one with the door knob angle of 0 ° (horizontal) feels 70.1% that it is the easiest to grip, and when pushing the door open, the door knob 1 I feel that the one with an angle of 30 ° (horizontal when the door is opened and pushed) is the easiest to push with 70.1%. From the result of the subjective survey, it was found that when the door was opened and closed, it was felt that the angle of the door knob 1 was the easiest to use.

Demonstration example 2

  FIG. 12 is an electromyogram measurement graph for the lever handle lock. FIG. 12 shows the maximum value of the electromyogram in the triceps surae when the door is pushed and opened, and the grip pressure by the pressure sensor. As shown in Fig. 12, when the angle of the doorknob 1 is 30 ° (horizontal when pressed), the myoelectricity is the smallest at 0.1649V, and the grip pressure is 30 ° (horizontal when pressed). The result was that the grip pressure was the smallest at 0.6827V. From the measurement of the electromyogram, it was found that the door knob 1 was horizontal when opening and closing the door, and that the burden on the body was the least.

  In addition to lever handles for homes and buildings, it can also be applied to lever handles for transport vehicles.

It is a top view which shows Example 1 which concerns on this invention. It is an elevation view showing Example 1 concerning the present invention. It is structure explanatory drawing of the doorknob which shows Example 1 which concerns on this invention. It is structure explanatory drawing of the doorknob which shows Example 1 which concerns on this invention. It is structure explanatory drawing of the doorknob which shows Example 1 which concerns on this invention. It is a top view which shows Example 2 which concerns on this invention. It is an elevation view which shows Example 2 which concerns on this invention. It is structure explanatory drawing of the doorknob which shows Example 2 which concerns on this invention. It is structure explanatory drawing of the doorknob which shows Example 2 which concerns on this invention. It is structure explanatory drawing of the doorknob which shows Example 2 which concerns on this invention. It is a graph of the subjective survey which concerns on this invention. It is a measurement graph of the electromyogram based on this invention.

Explanation of symbols

1 Lever Handle 2 Lock Body Case 3 Cover 4 Latch 5 Swing Member (Transmission Gear)
6 Spring 7 Handle guide 8 Latch guide (connecting member)
9 Latch gear plate
10 Handle gear plate

Claims (2)

  A mechanism for maintaining the door knob of the lever handle lock installed horizontally and sliding it downward, and a latch unlocking mechanism for reciprocating the latch mounted on the lever handle lock via the slide mechanism In the lever handle lock, a handle guide perpendicular to the axis of the handle protrudes from one end of the handle of the lever handle lock, and the handle guide is fitted to the main body of the lever handle lock. The handle guide is brought into contact with one side of a swinging member pivotally supported by the lever handle lock body, and the other side of the swinging member is connected to reciprocate the latch mounted on the lever handle lock. And a lever handle having one end fixed to the other end of the spring fixed to the body case of the lever handle lock. Le tablets. Wherein in the lever handle lock according to claim 1, the one end side portion of the lever handle lock, is projected to handle guide which is perpendicular to the axis of the lever handle lock, the latch mechanism to move up and down in the handle guide A transmission gear fixed to the handle guide and fitted to the latch mechanism mounted on the lock body case, and a connecting member for reciprocating the latch mounted on the lever handle lock on one side of the transmission gear. The lever handle lock is characterized in that the connecting member is fixed to the other end of the spring having one end fixed to the lock body.

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