JPH0422386U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of the seat lock mechanism according to the present invention in the seat lock state, Fig. 2 is an exploded perspective view of a key cylinder used in this device, and Fig. 3 is a vertical sectional view of the key cylinder used in this device. Fig. 3A is a sectional view of the key cylinder before the seat is locked, Fig. 3B is a sectional view of the key cylinder when the seat is locked, Fig. 3C is a sectional view of the key cylinder when the key is inserted, and Fig. 3D is a sectional view of the key cylinder when the seat is released. A sectional view of the key cylinder, FIG. 4 is an explanatory diagram for explaining the state of the SP plate used in this device before and after the seat lock is
The figure is an explanatory diagram for explaining the state of the SP plate before seat lock, Figure 4B is an explanatory diagram for explaining the state of SP plate during seat lock, and Figure 4C is an explanatory diagram for explaining the state of SP plate when seat is locked. FIG. 5A is an explanatory diagram for explaining the state of the locking head of the present device before the seat is locked, and FIG. 5B is an explanatory diagram for explaining the state of the same locking head when the seat is locked. FIG. 6 is a perspective view showing another embodiment of the locking member, and FIG. 7 is an overall perspective view showing the conventional device. 1... Locking plate (SP hook), 2... Locking member, 3... Holding part (key cylinder), 8a...
...First contact part (contact part), 9a... Second contact part (contact part), 10... First cylinder (outer cylinder), 13... Locking head, 14... 2nd cylinder (inner cylinder), 15...key insertion part, 15c...locking protrusion, 17...engaging hole (head engagement hole), 22...locking groove, 30...fitting part, S
……This device.

Claims (1)

[Claims for Utility Model Registration] 1. A locking plate having a hook portion and attached to the bottom plate so as to protrude toward the vehicle body frame, and a hole through which the locking plate enters and exits, and is provided in the vehicle body frame. a first contact portion disposed inside the cross plate and abutting a lower end of the locking plate;
a locking member having at least two contact portions with a second contact portion contacting a back portion extending from the lower end of the locking plate toward the bottom plate side of the locking plate; A seat lock mechanism comprising: a holding part that holds the plate rotatably around a direction perpendicular to the hook part of the plate; the holding part includes a first cylinder having a hollow cylindrical shape; a hollow cylindrical second cylinder disposed in the first cylinder having a key groove for inserting a key;
The second cylinder is arranged together with a coil spring in the cylinder.
a key insertion portion that receives an urging force in the longitudinal direction of the cylinder; a locking head that is fixed to the locking member and disposed within the first cylinder; and a locking head that is attached to the bottom of the second cylinder. a coil spring biasing the second cylinder, an engagement hole is formed in the bottom of the second cylinder in which the engagement head engages, and the key insertion portion and the key insertion portion facing each other are connected through the engagement hole. A seat lock mechanism characterized in that a fitting portion is provided between each end face of the locking head. 2. The fitting part is composed of a locking protrusion formed protruding from the end surface of the key insertion part, and a concave locking groove in which the locking protrusion is fitted, which is bored in the locking head, and the locking protrusion 2. The seat lock mechanism according to claim 1, wherein the locking groove and the locking groove fit together when the key insertion portion is pushed together with a key inserted into the key insertion portion. 3. The fitting part is composed of a locking projection formed protrudingly formed on the end surface of the locking head, and a locking groove into which the locking projection is fitted, which is bored in the end surface of the key insertion part, and the locking projection is fitted into the locking groove. 2. The seat lock mechanism according to claim 1, wherein the locking groove and the locking groove fit together when the key insertion portion is pushed together with a key inserted into the key insertion portion.